Padlock



Nov. 15, 1932. A. s. BEARDSLEY PADLOGK Filed April 9, 1931 2 Sheets-Sheet ATTORNEYS Nov. 15, 1932. A. s. BE-ZARDSLEY PADLOG K Filed April 9, 1931 2 Sheets-Shet 2 ATTORNEYS Patented Nov. 15, 1932 \ALFRED S.- BEARDSLEY OI MONTEVI DEO, URUGUAY :eAnLocx pp ioatio m 1pm. :9,

This invention rel-ates to improvements in padlocks and has for the primary object, the

- provisionaof a'device of the above stated character which will be free "of the disadvantages foundinpadlocks of the type depending on the use of keys and the operation of proper combinations and which by actual use have been foundeasily opened by the employment of duplicate and skeleton keys or the-employment of wire orjthe-like for picking the locks or the finding of the proper combination afterta few attempts. f e.

Another object of this invention is :the provision of a lock depending for its operation uponithe insertion of a proper slug and the manual operation of a slug receiving and holding means for bringing a certain portion of the'slug into engagement withltumblers'or shackle :catch elements to free-the shackle,

2e and due to the location of said means and the tumblers or shackle catch elements, a substantially tool-proof lock is provided and one which may not be easily opened by an unauthorizedperson. 7

.A. further object of this invention is the provision of means forreturn-ing-the slug receiving "and holding means to its initial position when manually released for positioning the slug for easy removal from the lock and '89 at the same time permitting the tumblers or shackle catch elements to automatically asswine normal position so that enclosing the sha cklethe latter will be vfirmly locked.

,A'ssti l'l fmtherlohject of this invention is the provision of a padlockofrthe.above stated 7 invention.

, I Figure 4 is a side elevation partly 1y mounted {as shown at 8 and swing between 1931. Serial No. 5 28376.

-Fig u re .2 is a vertical sectional View illusiii trating the same. i v Figure?) isla transverse sectional View taken on theli ne 33 of Figure 2. V a

in section illustrating the padlock inxan unlocked position. I I 1 Figure 5 is a plan view illustrating the tumblers or "shackle catch elements.

Figure 16 is'an- \ecl-geview illustrating the same, i y I Figure 7 isian end view :i llustratingthe arrange'ment of the projections on the tumblers or shackle catch elements that are adapted to be engaged by the slug. Figure 8 is .a plan view illustrating the slug. 1 4 a Figure 9- is an edge elevation illustrating thesame. j I ,1 t Referringin detail 'to the drawings, the numeral 1 indic-atesa lock casing which may be of any "desired shape and is provided with shackle receiving openingsfl and 3 tier re ceiving the ends of a shackle 4 and one-end oi. the shackle is pivot-ally mounted. within the casing -1-as-.-il-lustrated at *5 while the .opposite end is provided with a notch 6 to be engaged bya plurality-of tumblers orshaokle catch elements 7 Thetnmblers 7' are pivotalstops '9 and .19 within the casing and are each engaged bya leaf springill. The springs 11 are secured in parallelism "to the interior of the casing :by being positioned between lugs 12. The action of the springs is to nomn ally urge the tumblers "(against the stop 9 i and In a position to engage in the notch 6 of the shackle forfholding thelatter ina locked position; v t

- Eachtumhler is of substantially .L-shape with the leg portion 13 carrying at its free enda wedge-shaped projection il lto engage 111 the notch 60i the shackle while the leg portion l5carries alaterally extending projection or lug 16. The lugs 16 may :be of different lengths and shapes to agree with projections 17 formedupon the slug 18 which will be hereinafter morefully described. .A shaft '19 is journalled in theside walls of the casing and extends exteriorly thereof and hasksecured to v 1 oneend a fingerpieceorknob 20. The shaft 19 has secured thereon a slug receiving and holding member 21 which is apertured to receive one end of a coiled spring 22, the other end of the coiled spring being secured to the casing 1 for the purpose of normally positioning the member 21 to receive the slug 18 by way of the entrance or opening 23 formed in the casing 1. Aportion of the member 21 is enlarged and of semi-circular shape so as to expose a portion of the slug 18 when positioned thereon for the purpose of actuating the tumblers 7 when moved thereagainst. The semi-circular portion of the member 21 hasformed thereon oppositely disposed lugs 24 and 25 adapted to fit in slots 26 and 27 of the slug 18 for the purpose of retaining the slug on the semi circular portion and causing the slug to move with the member 21 for actuation of the tumblers 7. It is to be understood that the shapes and sizes of the lugs 24 and 25 may be varied andalso the shapes and sizes of the slots 26 and 27 are changed accordingly, thereby providing a large selection or variations to be had in the manufacture of padlocks of this character, and to permit a wider range of slug or variations to be had. The projections 17 on the slug may be made in different sizes and shapes and the projections 16 on the tumblers varied accordingly.

A stop 28 is located in the casing 1 for limiting the movement ofthe member 21 beyond its initial position and opposite the entrance or V the opening 23 so that the slug may be easily placed on and removed from the semi-circular shaped portion of the member 21.

The slug 18 may be provided with an opening 29 for the purpose of receiving a key ring or the like and if desired the slugmay be used for identification purposes by having the name and address of the owner of the lock applied thereto in any suitable manner.

A portion of the casing 1 is reduced in thickness to provide a restricted chamber 30 in which the semi-circular portion of the member 21 operates so that the walls of the casing 1 will aid in retaining the slug on thesemicircular portion during the movement of the slug into and out of engagement with the tumblers. 7

In operation, the person having the proper slug insertsthe latter through the entrance or opening 23 onto the semi-circular portion with the notches 26 and 27 receiving the projections 24 and 25. The slug so positionedis then moved by rotating the finger piece 20' until the projections 17 engage the lugs 16 and rock the tumblers on their pivots and against the stop 10 freeing the tumblers from the shackle whereby the shackle may be swung into'an open position as shown in Figure Assoon as the finger piece 20 is manually released, the spring 22 swings the member 21 in engagement with the-stop 28 positioning the slug that it maybe removed through the opening or entrance 23 by tilting the lock casing.

When the member 21 and slug return to their initial position as shown in Figure 2, the tumblers 7 automatically return into engagement with the stop 9 by the influence of the springs 11 and into a position that when the notched end of the shackle is inserted into the casing the wedge-shaped ends 14 of the tumblers will engage into the notch 6 and lock the shackle in the casing thereby providing a device which is substantially fool-proof and one that can be easily and conveniently operated when a person is in possession of the proper slug for the respective lock.

' While I have shown and described the preferred embodiment of my invention, it willstruction, combination and arrangement of parts may be made without departing from the spirit and scope of the invention, as claimed. v r

Having thus described my invention, what Iclaim is:

l. A padlock comprising -a casing having an entrance, a pivoted shackle'carried by the casing, tumblers in the casing to engage and hold the shackle against pivotal movement, a slug receiving and holding member journalled in the casing, aslug adapted to be positioned on said memberby way of the en trance and having slots, lugs on said member fitting in the slots, and a finger piece connected to the member for moving the latter .to cause the slug to engage the tumblers to disengage the latter from the shackle.

2. A padlock comprising'a casing having an entrance, a pivoted shackle carried by the casing, tumblers in the casing to engage and hold the shackle against pivotal movement, a slug receiving and holding memberfjournalled in the casing and having a semi-circular shaped'portion positioned in rear of the entrance, lugs on the semi-circular shaped portion, a slug having slots positioned on the semi-circular shaped portion by way of the entrance with the lugs fitting in the slots, and a finger piece for rotating the member to engage the slug with thetumblers to disengage the latter from the shackle. 7

3. A padlock comprising a casingrhaving an entrance, a pivoted shackle carried by the casing, tumblers in the casing to engage and hold the shackle against pivotalimovement, a

slug receiving and holding member in the tion, projections on said slug, lugs on the tumblers to beengaged by the projections, a

finger piece connected to the slug receiving and holding member for rotating the latter to engage the projections with the lugs of the tumblers for causing disengagement of said tumblers from the shackle.

4. A padlock comprising a casing having an entrance, a pivoted shackle carried by the casing, substantially L-shaped tumblers pivoted in the casing to engage and hold the ter from the shackle when the slug receiving and holding member is rotated, and a finger piece connected to said member.

5. A padlock comprising a casing having portions of opposite walls thereof offset inwardly to form a restricted chamber having an entrance, a movable shackle carried by.

said casing, tumblers in the casing to engage and hold the shackle against movement relative to the casing, a slug receiving member movably mounted in the restricted chamber of the casing, a'slug to be positioned on said member by way of the entrance and movable therewith to engageand free the tumblers from the shackle and retained on said mem-' her while out of alignment with the entrance by one of the walls of the restricted chamber, and a finger piece for imparting movement to the slug receiving member.

In testimony whereof I afiix my signature.

ALFRED S. BEARDSLEY. 

